Gun-mounting



' e. SIMSON.

GUN MOUNTING. APPLICATION HLEDSEPT- 21. 191 7.

1,305,839. I Patented June 3; 1919 3 SHEETS-SHEET I.

G. SIMSON.

GUN MOUNTING.

APPLICATION HLED SEPT.2I. 1911.

1,305,839. I A Patented June 3, 1919. I

3 SHEETS-SHEET 2.

ms muams Psrsks no PMOIDLIYNL'L. WASHINGNN, n. c.

e. slmsow.

GUN MOUNTING. APPLICATION FILED SEPT- 21, 1917- 1,305,839. Patented June 3, 1919.

3 SHEETS SHEET 3.

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1 N TED STATES PATENT OFFIC.

GEORGE smsom or THEBRITISH NAVY, ASSIGNOR or ONE-HALF 'rosm W. G. 1 -nnmsrmone; wmrwoarn AND COMPANY, LIMITED, or NEWCASTLE-UPON- 'rYNE, ENGLAND.

' subject-of the King of Great Britain, en-' gineer lieutenant in His Britannic Majestys ship Lord UZi ve, have invented a new and useful Improvement in Gun-Mountings, of

which'the, following is a specification.

This mounting is designed to enable .a sub- Imarine or other similar craft to manher gun or guns while under water and to bring the same into action the instant she comes to the surface, or even when partially submerged. Should she require to dive hurriedly she may. do so without the delay at present needed for stowing guns, getting the crew below, closing hatches, etc.

My invention is illustrated in the accom- M panying drawings in which Figure 1 is a a longitudinal section through the gun cradle,

trunnion block and easing. Fig. 2 is a crosssection through the axis of the trunnions. Fig. 3 is a side elevation of the gun and mounting with the gun house and trunk shown in section. Fig. 4 is a rear elevation .of the gun and mounting with the gun house and-part of the trunk shown in section.

' Ais a cylindrical block which is slightly tapered transversely and has in it a diametralhole in which is secured the cradle B.

A nut C holds the block hard up against a The front of the cradle F to prevent water entering the mounting between the gun and cradle. The block A is fitted into a casing G having covers H bolted on at either side. In the casing G are slots throughwhich the gun and cradle project; ea'ch'of these slots is made long enough to allow for theelevatlon and depression of I the gun and cradle. Around the front slot ,isarecess into which is fitted a continuous packing'J which is kept in place by retaining pieces K: this forms a water tight joint between the block and casing. A spigot L is formed on the base of the casing for bolt- ;ing it to the pedestal M, in the rear of .whichlis cut a slot to allow of the move- I Z ment of the gun and cradle to a high angle 7 of elevation. i

' Fitting around the front slot of the casing Gun- MOUNTI G.

Gis a bracket N which connects the casing to the gun houseO..' P a trunk extending down into the interior of the vessel and having secured to it at its upper endfa circular casting Q, which is bolted, to'the ped estal M and also to the gun house O.' Near the base of the trunk is a manhole with a water tight door It through which the crew can pass into the trunk and so by means of a' ladder S into the pedestal and gun house. A platform T is constructed in the gun house at a suitable height for working the mounting. The trunk revolves in a packed gland U fitted to the outer shell'of the vessel and packed with leathers V thus pre venting water entering the vessel around the outside of the trunk.

At a convenient height the trunk P is surrounded by a training rack W which is secured to the structure of the vessel and into which meshes a pinion X carried in a bracket Y and actuated by a vertical shaft Z which is geared to a handwheel A mounted on the pedestal M. The trunk, mounting and gun house are supported on rollers B the upper roller path C being secured to a casting D fitted around the bottom of the trunk, while the lower roller path E is secured to the main structure of the vessel.

The ammunition is raised from the bottom of the trunk by means of a hoist cage F from which it is transferred to a chute G under the working platform T. The gun is elevated by means of a rack H secured to the cradle and meshing with a pinion J which is geared to a handwheel K The sights L for the gunlayer and trainer are of the periscope pattern leading out through the sides of the gun house, glands M being fitted toprevent entry of water. Seats N are-provided for the gunlayer and trainer.

What I claim is 1. In a gun mounting. the combination of a cylindrical block capable of partial rotation about its own axis, a casing fittin Watertight around the block. a cradle fixed in adiametral hole in theblock and means for rotating the block within the casing.

2. In a gun mounting, the combination of a cylindrical block capable of partial rotation about its own axis, a cradle fixed in a diametral hole in the block, a casing fitting watertight around the block and slotted to allow forielevatioh zlnd zieprsls ion "of the! cradle, and means for rqtati g thg blp'ck.

"Within the'casing. V V r In a, gun mounting, the c ombinatioh of a cylindrical black, a "casing fitting waterw diametral ho'le in the block, a cover secured {to each side of the iasing and-means fir-r09 tating the block Within the casing.

at, "In a gun moi-mtingfihe combination-of a pedestal, a casing-securgd to the top'them- '1 of, a cylindrical block fittifigfw atertight wi hinthe casing; a (:mdl'efi QdEin di m-1.:

' etral hole n the blockand'means foli'rhtt k r I his ou thff'd' y 5,. In' ,,un'mQ11lntij1ig,ith6comhinatiimhf ing the block 'Within thg' casing.

V aJfpedestal a casing secilrfid. t9 the top there: 0', a yl nclrical block fi ting wa ertight I within the casingfa'eradle fiXed,

the} blogk Within the} 1 rotating the pedestal.

6. The combination the grill .0.1136; a cyl mgans lfOr ro't a tir lgv blocki 'hwj ithili 1 the V m b vm m if as inventiqm l h v fs d m; f

"1917 I. :1 v iSIMSON 20V; i alxdxm ans r r 

